# SPARK 3 vs Shift Pro

The clearest difference is ads: SPARK 3 at none against Shift Pro's shown. SPARK 3 also leads on review sentiment (67% vs 33%) and monetization model (free vs ad-supported). Shift Pro's advantage is update cadence (every 2 months vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SPARK 3 ships an update every 7 months, Shift Pro every 2 months. The most recent releases landed on September 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SPARK 3 | Shift Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 44 MB | 29 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Suthipoj tripuwabhrut](https://appshunter.io/developer/1445632800) | [NK RACING PARTS COMPANY LIMITED](https://appshunter.io/developer/1500859331) |

## What reviewers say

### SPARK 3

[App page](https://appshunter.io/ios/app/spark-3-alphatech/id1583702864)

Enhance your vehicle's responsiveness with this utility app. It offers adjustable throttle settings for a more engaging driving experience, compatible with both gasoline and diesel engines. Enjoy features like smoke limit and ramble modes without engine modification.

**Highlights:** Adjustable electric throttle (50 levels), Improved throttle response, No wire cutting required, Compatible with gasoline and diesel, Smoke limit mode, Ramble mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Shift Pro

[App page](https://appshunter.io/ios/app/shift-pro-nk-racing/id1596897355)

This application allows users to tune the fuel distribution of injectors. It provides functions to display, configure, and log data, as well as open and save configuration files.

**Highlights:** Display fuel data, Configure fuel data, Open and save files, Data logging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SPARK 3 free?

SPARK 3 is free to download, with no in-app purchases.

### Is Shift Pro free?

Shift Pro is free to download, with no in-app purchases.

### Do SPARK 3 or Shift Pro have ads?

Shift Pro shows ads; SPARK 3 does not.

### Which is updated more often, SPARK 3 or Shift Pro?

SPARK 3 ships an update every 7 months, and Shift Pro every 2 months. Most recently, SPARK 3 was updated on September 18, 2026 and Shift Pro on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*